Syntheses, powder neutron diffraction structures and Mossbauer studies of some complex iron oxyfluorides: Sr3Fe2O6F0.87, Sr2FeO3F and Ba2InFeO5F0.68
Syntheses, powder neutron diffraction structures and Mossbauer studies of some complex iron oxyfluorides: Sr3Fe2O6F0.87, Sr2FeO3F and Ba2InFeO5F0.68
Sr2FeO3F and the novel phases Sr3Fe2O6F0.87 and Ba2InFeO5F0.68 have been prepared and their structures investigated by powder neutron diffraction methods. Sr2FeO3F crystallises with the T* modification of the K2NiF4 structure owing to oxide/fluoride ordering. Sr3Fe20O6F0.87 and Ba2InFeO5F0.68 are mixed valent phases prepared by reaction of anion deficient iron(III) materials with gaseous fluorine. Sr3Fe2O6F0.87 is a Ruddlesden-Popper type material which has been shown by Mossbauer spectroscopy to contain iron(III) and iron(V). Ba2InFeO5F0.68 is the first example of an iron oxyfluoride with a perovskite-type structure.
2821-2827
Case, G. Simon
03000e50-dbd9-4d52-adff-df900e9c38eb
Hector, Andrew L.
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Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Needs, Richard L.
66c56851-3b2a-4e4b-800e-d9acaa21a3bd
Thomas, Michael F.
c594433d-fc58-44e4-b8ca-06d36121abcf
Weller, Mark T.
36a60b56-049f-466c-a1d7-39d6b0d85ff4
1999
Case, G. Simon
03000e50-dbd9-4d52-adff-df900e9c38eb
Hector, Andrew L.
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Needs, Richard L.
66c56851-3b2a-4e4b-800e-d9acaa21a3bd
Thomas, Michael F.
c594433d-fc58-44e4-b8ca-06d36121abcf
Weller, Mark T.
36a60b56-049f-466c-a1d7-39d6b0d85ff4
Case, G. Simon, Hector, Andrew L., Levason, William, Needs, Richard L., Thomas, Michael F. and Weller, Mark T.
(1999)
Syntheses, powder neutron diffraction structures and Mossbauer studies of some complex iron oxyfluorides: Sr3Fe2O6F0.87, Sr2FeO3F and Ba2InFeO5F0.68.
Journal of Materials Chemistry, 9 (11), .
(doi:10.1039/a905730g).
Abstract
Sr2FeO3F and the novel phases Sr3Fe2O6F0.87 and Ba2InFeO5F0.68 have been prepared and their structures investigated by powder neutron diffraction methods. Sr2FeO3F crystallises with the T* modification of the K2NiF4 structure owing to oxide/fluoride ordering. Sr3Fe20O6F0.87 and Ba2InFeO5F0.68 are mixed valent phases prepared by reaction of anion deficient iron(III) materials with gaseous fluorine. Sr3Fe2O6F0.87 is a Ruddlesden-Popper type material which has been shown by Mossbauer spectroscopy to contain iron(III) and iron(V). Ba2InFeO5F0.68 is the first example of an iron oxyfluoride with a perovskite-type structure.
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Accepted/In Press date: 16 August 1999
Published date: 1999
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Local EPrints ID: 491736
URI: http://eprints.soton.ac.uk/id/eprint/491736
ISSN: 0959-9428
PURE UUID: 560a5a50-0c85-4f92-ac2c-e57f32e7ab1a
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Date deposited: 03 Jul 2024 16:58
Last modified: 11 Jul 2024 01:37
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Author:
G. Simon Case
Author:
Richard L. Needs
Author:
Michael F. Thomas
Author:
Mark T. Weller
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